Next pandemic threat? Japan faces early, alarming flu outbreak

New Delhi: Japan is witnessing a sharp and unusually early outbreak of seasonal influenza, sparking concerns over whether the country, and potentially the region, could be on the verge of a larger public health crisis.

More than 4,030 flu cases have already been reported across 3,000 hospitals, pushing the nation above its epidemic threshold, according to Japan’s Health Ministry. The country typically sees flu cases spike in December, but this year’s surge began a full month earlier, making it the second-earliest flu season in two decades.

Why is Japan sounding the alarm now?

The average number of flu patients per institution has reached 1.04, crossing the official epidemic line. The worst-hit regions include Okinawa, Tokyo, and Kagoshima, with Okinawa reporting the highest number of cases per hospital.

Over 100 schools, kindergartens, and childcare centres have already been shut down following outbreaks among children, raising fears of wider community transmission.

Japan’s Health Ministry has urged the public to follow precautionary measures such as mask-wearing and hand hygiene, and recommended vaccinations for vulnerable groups, including children, the elderly, and those with chronic illnesses.

Could this be a sign of something bigger?

Experts warn that global travel and increased human mobility may be fueling the virus’s rapid spread and adaptability.

“The flu season has started really early this year, but in the changing global environment, this might become a more common scenario,” said Yoko Tsukamoto, a professor at the Health Sciences University of Hokkaido, in an interview with South China Morning Post.

Tsukamoto noted that early flu waves are being reported in other countries as well, hinting at a global shift in the virus’s behaviour and timing.

“We are seeing a greater circulation of people, both in Japan and globally, with people taking the virus to new places, which is another factor behind the virus adapting to new environments.”

While the exact strain of the virus has not been publicly identified yet, health officials are monitoring closely. The previous flu season in Japan began in early November and peaked in late December, but was considered over by April.